Utile Per Inutile Non Vitiatur – The Doctrine of Severability Under Article 13: How the Supreme Court Preserves the Valid and Excludes the Void

When a statute, or a constitutional amendment, offends the Constitution in part, the court must decide whether the whole must fall or only the offending part. The Supreme Court has answered that question for seventy years through a single organising idea: the maxim that the useful is not vitiated by the useless. This article traces the doctrine from its textual root in Article 13, through A.K. Gopalan and R.M.D. Chamarbaugwalla, to its application to constitutional amendments (Kihoto Hollohan, Minerva Mills), economic legislation (Harakchand Banthia, Amratlal Prajivandas), and the modern techniques of reading down and partial invalidation (Shreya Singhal, Navtej Singh Johar). It closes with the limits of the doctrine and a practitioner’s checklist.

I. The Constitutional Text and the Rationale

The doctrine is anchored in the language of Article 13, which uses two slightly different formulations for pre-constitution and post-constitution laws:

Article 13(1): Pre-Constitution Laws

Article 13(1): all pre-constitution laws, insofar as they are inconsistent with Part III, shall, to the extent of such inconsistency, be void.

Article 13(2): Post-Constitution Laws

Article 13(2): the State shall not make any law which takes away or abridges the rights conferred by Part III, and any law made in contravention of this clause shall, to the extent of the contravention, be void.

The Extent of Inconsistency and Legislative Intent

In both limbs the voidness is measured by the extent of the inconsistency or contravention, not by the whole enactment. That textual restraint is reinforced by a presumption about legislative intent: a legislature that has enacted a coherent scheme is presumed to prefer a smaller surviving scheme over none, provided the surviving part can function on its own.

II. The Foundational Decisions (1950–1951)

A.K. Gopalan v. State of Madras, AIR 1950 SC 27

The first major application. The Court held s. 14 of the Preventive Detention Act, 1950, void because it barred a detenu from disclosing to the court the grounds of detention or his representation. It then asked whether the whole Act fell with it and held that the Act without s. 14 could stand unaffected: the section was an appendage that did not alter the nature, structure or object of the Act. The case is the paradigm of a dispensable provision.

Romesh Thappar v. State of Madras, AIR 1950 SC 124

The counter-paradigm was decided in the same year. Where a law authorises restrictions on a fundamental right in language wide enough to cover both permissible and impermissible restrictions, and the two cannot be separated, the whole provision must be struck down.

Severability is therefore not a rule of preservation at all costs; it is available only where the line between the valid and invalid can actually be drawn.

State of Bombay v. F.N. Balsara, AIR 1951 SC 318

The High Court had declared several provisions of the Bombay Prohibition Act, 1949 void, and the respondent argued that, once material provisions were gone, the Act as a whole must be declared invalid. The Supreme Court declined to invalidate the enactment as a whole and substantially allowed the State’s appeal, upholding the Act’s core prohibition scheme while holding particular provisions void to the extent of their repugnance. Balsara is the earliest full-dress treatment of partial invalidity of a regulatory code and is the springboard for the later general test.

III. The Governing Test: R.M.D. Chamarbaugwalla

R.M.D. Chamarbaugwalla v. Union of India, AIR 1957 SC 628 ([1957] SCR 930)

In R.M.D. Chamarbaugwalla v. Union of India, AIR 1957 SC 628 ([1957] SCR 930), the Constitution Bench considered the Prize Competitions Act, 1955, whose definition of “prize competition” extended to competitions of skill, which could not be regulated as gambling. The Court held that the impugned provisions were void as applied to competitions involving substantial skill but were severable in their application to competitions of a gambling character and enforced them to that extent. It also confirmed that severability applies whether invalidity stems from want of legislative competence or from violation of a constitutional prohibition.

The principles that emerge, which every later Bench has applied, may be stated as follows:

• Intention is decisive. The question is whether the legislature would have enacted the valid part had it known the rest was invalid.
• Inextricable mixture. If valid and invalid provisions are so interwoven that they cannot be separated without leaving an ineffectual residue, the whole statute falls.
• Single integrated scheme. Even if textually separable, provisions that form one scheme meant to operate as a whole stand or fall together.
• The thin residue. If, after excision, what remains is so truncated as to be different in substance from what the legislature enacted, the statute fails.
• A complete, workable code. If the remainder is complete in itself and capable of enforcement, it survives.
• Substance, not form. Severability does not turn on whether the valid and invalid parts sit in separate sections; it turns on their substance.
• No judicial legislation. If the remainder can be enforced only by making alterations or modifications to it, the court cannot do so; the Act must be declared void.
• Aids to intention. The history of the legislation, its object, title and preamble may be consulted.

IV. Severance in Constitutional Amendments

Kesavananda Bharati v. State of Kerala, AIR 1973 SC 1461

The thirteen-judge bench decision that fixed the basic-structure limit on the amending power also dealt with Article 31C as inserted by the Twenty-fifth Amendment. Its protection for laws giving effect to Article 39(b) and (c) was sustained, while the part insulating the legislature’s declaration from judicial scrutiny was held invalid. The amendment was thus pruned, not discarded.

Kihoto Hollohan v. Zachillhu, 1992 Supp (2) SCC 651 (AIR 1993 SC 412)

The Tenth Schedule (anti-defection law) was inserted by the Fifty-second Amendment. Paragraph 7 declared that no court shall have jurisdiction in matters connected with disqualification.

The Court held that para 7 in terms and effect excluded the jurisdiction of the Supreme Court and High Courts under Articles 136, 226 and 227, changing the operation of those Articles, and therefore required ratification by the States under the proviso to Article 368(2), which had not been obtained. Paragraph 7 was invalid.

Applying the doctrine of severability, the Court held that the rest of the Tenth Schedule stood independently of para 7, was complete and workable, and remained valid. This is the clearest example of severance of a jurisdiction-ousting clause from an otherwise sound code.

Minerva Mills Ltd. v. Union of India, (1980) 3 SCC 625 (AIR 1980 SC 1789)

Section 4 of the Forty-second Amendment substituted “all or any of the principles laid down in Part IV” for the principles in Article 39(b) or (c) in Article 31C, and s. 55 inserted clauses (4) and (5) in Article 368, placing amendments beyond judicial review and removing limits on the amending power.

Both were held beyond the amending power as destructive of the basic structure and were struck down, while the remainder of the Forty-second Amendment was left to stand. (Note that the Court’s short order of 9 May 1980 is reported at (1980) 2 SCC 591; the reasoned judgement of 31 July 1980 is at (1980) 3 SCC 625.) The decision shows that the doctrine is not confined to ordinary legislation.

V. Partial Invalidity in Regulatory and Economic Legislation

Harakchand Ratanchand Banthia v. Union of India, AIR 1970 SC 1453

The Court examined the Gold (Control) Act, 1968, and held ss. 5(2)(b), 27(2)(d), 27(6), 32, 46, 88 and 100 invalid (decided 30 April 1969; also reported at (1969) 2 SCC 166). The challenge to the Act as a whole failed; the invalid provisions were excised, and the legislative scheme survived. Parliament responded with the Gold (Control) Amendment Ordinance, 1969, which replaced s. 27(6) with retrospective effect. The case illustrates the practical interplay: severance preserves the regime while leaving the legislature room to cure the defect.

Attorney General for India v. Amratlal Prajivandas, (1994) 5 SCC 54

A bench of nine judges, deciding on 12 May 1994, upheld the competence of Parliament to enact COFEPOSA and SAFEMA and held the definition of “illegally acquired properties” in s. 3(1)(c) of SAFEMA not invalid but read it down so as to confine its operation to properties acquired in contravention of the specified enactments. It is a leading authority that reading down is the companion technique to severance: instead of excising words, the Court narrows the operation of the provision to its constitutional core.

VI. Reading Down and Partial Invalidity: Shreya Singhal and Navtej

Shreya Singhal v. Union of India, (2015) 5 SCC 1 (AIR 2015 SC 1523)

Decided on 24 March 2015, the judgement shows all three outcomes in one decision. Section 66A of the Information Technology Act, 2000, was struck down in its entirety as violative of Article 19(1)(a) and not saved by Article 19(2); s. 118(d) of the Kerala Police Act fell with it. Section 69A and the blocking rules were upheld as narrowly drawn with safeguards. Section 79(3)(b) and Rule 3(4) of the Intermediary Guidelines Rules, 2011, were upheld subject to being read down. The decision teaches that the doctrine is not a one-way ratchet toward survival: where the vice is vagueness running through the whole provision, severance and reading down are unavailable.

Navtej Singh Johar v. Union of India, (2018) 10 SCC 1 (AIR 2018 SC 4321)

The five-judge bench, on 6 September 2018, unanimously held s. 377 IPC unconstitutional to the extent that it criminalises consensual sexual acts between adults, as violating Articles 14, 15, 19 and 21. The provision was left operative for non-consensual acts and acts involving minors. Strictly, this is partial invalidation by confining the operation of a provision, rather than excising a clause: it tracks the text of Article 13, which voids a law only “to the extent” of its inconsistency, more closely than the classical deletion of a section.

VII. Where the Doctrine Stops

Inseparable Language

Romesh Thappar and Shreya Singhal (s. 66A) show that where the permissible and impermissible cannot be disentangled, the whole must go.

No Rewriting

Chamarbaugwalla forbids saving a statute by alterations or modifications; severance subtracts, it does not add.

Integrated Schemes

Where the valid part is meaningless without the invalid, the legislative intention test fails.

Beyond Statutes

The Court has also applied severance to contracts, but sparingly: in Canara Bank v. K.L. Rajgarhia, 2025 INSC 127, it is reported to have held that severance is available even in a suit for specific performance only in exceptional cases and cannot be used to redraft the bargain (amber: confirm against the judgment).

VIII. Practitioner’s Checklist

• Identify precisely which words, clause or application is said to be void, and under which constitutional provision.
• Ask first what survives: is the remainder a complete and workable code (Chamarbaugwalla)?
• Test legislative intention from the preamble, object and history; cite the severability clause if there is one, but remember it is not conclusive.
• Offer the Court the narrower relief first: reading down (Amratlal, Shreya Singhal on s. 79) or confinement of operation (Navtej) before wholesale invalidity.
• For amendments, check whether the defect is procedural (Kihoto: ratification) or substantive (Minerva Mills: basic structure); the result is severance in either case.
• When resisting severance, show inextricable mixture, a single integrated scheme, or a residue so thin that it is a different law.

IX. Citation Table

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